Discharging means for jigs.



s. v TENCH.

DISCHARGING MEANS FOR JIGS.

APPLICATION FILED NOV. 29, 1913.

1 ,1 5 3,5 2'? Patented Sept. 14, 1915.

2 SHEETS-SHEET l- ZYwf. J-

INVENTOR -6WZWW @WWW A TTORNEY COLUMBIA PLANOGRAPH O..WA5HXNOTON. D. c.

S. V. TENCH.

DISCHARGING MEANS FOR JIGS.

APPLICATION FILED Nov. 29. 1913.

HG. Z.

WITNESSES Patented Sept. 14, 1915.

2 SHEETSSHEET 2.

FIG; 3-

[TI I 5 g. g O F a m-I; [##M llll II I 1 lNVE/VTOR By @WVKVW ATTORNEY WEED STAiilE PATENT @FFKQE SAMUEL V. TENCH, 0F LANSFORD, PENNSYLVANIA.

:oIsoHAnsIns MEANS non JIGS.

More particularly, however, it relates to an improved construction of means for dis charging the niaterlals, such as coal and -slate, after. the same have been separated in known manner.

The general practice heretofore has been to employ conveyers having flights for carrying the coal and slate from the jig. In the use of such means, however, a considerable percentage of the coal is broken up so that its value is somewhat depreciated, and it is one of the objects of my invention to provide a discharging means by the employ ment of which such breaking up of the coal :will be obviated.

Other objects and advantages of my invention wlll be speclfically referred to 1n the detailed description of my invention which follows or else will be apparent construction and in the arrangement of parts may be made within the scope of the claims without departing from my invention.

In the drawings :Figure 1 is a central vertical. section from front to rear of a jig embodying my invention, certain parts thereof being shown in elevation; Fig. 2 is a rear elevation of the same, a part thereof being shown'in section; Fig.3 is a transverse section on the line 33 of Fig. 1; and Fig. 1 is a sectional view 1 showing more clearly a detail of construction.

Referring to the drawings, 1 designates a tank supported upon a frame structure 2. The bottom of the said tank is provided with an opening, indicated at 3, for the discharge of mud and other like refuse there Patented Sept. 14, 1915.

I Application filed November 29, 1913. SerialNo. 803,650.

from. The tank is divided into two compartments, 5 and 6, by means of a partition 7. The said partition terminates a considerable distance above the bottom of the tank, as is indicated in Fig. 1 of thedrawings. The bottom of the compartment 5 consists ofa perforated jig plate 8'which is secured and held in position in any desired known manner. The said plate is inclined downwardly as is shown in Fig. 1 of the drawings.

9 designates an adjustable bafiie plate situated in the compartment 5 and which is inclined downwardly toward the partition 7. Said plate-9is supported from the crosspiece 10. The mixed coal and slate which is to be operated upon is introduced into the space between the baflie plate 9 and the partition 7 constituting a coal inlet. The mixture of' coal and slate lodges upon the jig plate 8 and passes underneath the lower edge of the baflie plate 9. Thepulsations of the water in the tank and in the compartment 5. are caused by the plunger 15. Such pulsations effect the separation of the coal and slate in known manner. The slate being of higher specific gravitythan the coal remains upon the plate 8 and travels downwardly thereon and is discharged at the discharge opening 16. The coal being of lighter specific gravity travels or moves upwardly in the water and falls over the upper edges of the plates 17, 18 and 19. The width of the passageway 16 for the slate may be adjusted by means of the baiile plate 20 which is secured to the lower endsof the adjustable rods 21 by which it is supported.

' The plunger 15 is operated by means of a connecting rod 25 having connection with an eccentric 26 upon a shaft 27. This shaft may be driven by any suitable means. Such means, however, is not shown.

The coal which. is discharged over the edges of the plates 17, 18 and 19, as above stated, lodges upon the top 30 of a lifting device 31. The said top is inclined outwardly and downwardly and is perforated so that the water may pass therethrough when the said device is lifted by means of the connecting rods 32 as 'will be later on described. The lifting device 3l'is somewhat narrow from front to rear as illustrated, but is of a width or length substantially equal to the width of the tank of the jig; The outer side 33 of the lifting device works against the inside surface of a trans= thereto. Such rocking movement of the arms 41 causes a reciprocating movement of the connecting rods 32 and of the lifting verse plate 34 having an outwardly and downwardly inclined flange 35 at its upper edge. The inner upper edge of the inclined top 30 of the lifting device 31 is connected to the plate 19 along a line a short distance.

below its top edge as shown in Fig. 1 of the drawings. In this way a shallow angular trough or receptacle is provided upon the top of the said lifting device 31 for the purpose of holding a desired amount of coal tobe lifted and discharged over the upper edge ofthe plate 34. The plates 17, 18 and 19 have sliding'or telescoping connectlon with each other by means of pins and slots as is more clearly illustrated in Fig. 4 of the drawings. When the discharging device is lifted, lugs 35 which are secured to the lower. edge of the plate 19 travel upwardly in slots 36 in the intermediate plate 18 until they contact with the upper ends thereof after which the plate 18 is also lifted until it reaches the position indicated in said Fig. 4. The plate 17 remains stationary.

For the purpose of operating the connecting rods 32 to raise and lower, that is to reciprocate, the lifting device 31, I have pro- ,vided a shaft 40 mounted to rock upon the frame 2 which shaft is provided with arms 41 having connection with the upper ends of the connecting rods 32. I have also pro- .vided an arm 43 situated at the center of the device for causing the discharge of the coal connected to the lower ends thereof.

The slate and stone which are discharged through the opening 16 travel downwardly over the inclined surface 50 and lodge upon the upper sides of the parts 51 and 52.

The part 51 is the weight receiving element of a valve tripping mechanism the construction and operation of which will be more fully and specifically described hereinafter.

The part 52 may be described as the lifting member of a slate lifting and discharging device. The inner side 53 of said device is elongated and widenedas shown so that as thelifting device 52 is raised the said side 53 does not pass out of contact'with its adjacent guiding member 53 The upper edge of the inside plate 53 of the device 52 extends a short distance above the upper surface of the top of said device so that a receptacle is formed between the said upwardly projecting edge and the confronting wall of the tank 1.

For the purpose of moving the member 52 upwardly and downwardly to discharge the slate over the upper edge 58 of the rear wall of the tank 1, Ihave provided a cylinder 60 having a piston (not shown) therein,

the connecting rod 60 of which is secured to a cross bar or beam 61. The opposite ends. of said bar or beam are guided in guides 62vupon the opposite parts of the framework of the structure. Said bar or beam 61 is connected by means of rods 63 to'the top of the slate lifting and discharging device52. It is not necessary that the member 52 be reciprocated continuously because reciprocatlon at intervals will be sufficient to discharge the slate and stony material which usually constitutes only a small proportion of the mixed coal and slate.

Although in the construction illustrated I have shown automatically operating means for causin the actuation and -o' eration of P the piston in the cylinder 60 to effect vertical reciprocation of the member 52 and thereby discharge the slate and similar stony material, Iv desire to point out that my invention inits broader aspect is intended 'to comprehend other means which may be manually operated for effecting the reciprocation of the piston in the cylinder and the discharging member which is connected thereto.

The means employed by me for efiecting the automatic operation of the dischargin mechanism consists of the member 51 hereinbefore referred to which is supported nor- ,mally in the position shown by means of rods 64 which extend through and are suspended upon a cross bar 64 which is supported upon the frame structure of the apparatus. The upper ends of these rods are provided with nuts and washers 64 and interposed between the washers and the upper side of the bar 64 are coiled wire-springs 65. These springssupport the rods in the position indicated in Fig. 1 of the drawings in which position the top surface of the member 51 is flush with the inclined upper edge of the guiding member 53 As the weight of the slate and other stony material upon the top of the member 51 increases the said member is depressed carrying the said.

rods 64 downwardly a'gainstthe resistance offered'by the springs 65., The said rods 64 have connection with a rod 66 so that as they are moved downwardly the said rod 66 is also moved downwardly. The connection between the rod 66 and the rods64 may be effectedin any suitable manner. In the construction shown I have provided a rod 66 which is -securedupon and extends between the rods 64. The rod 66 is connect, ed to the rod 66 by means of a cross bar or connection 66. It will be seenthat by reason ofthis connection the rod 66 is depressed or moved downwardly or -upwardly in unison with the" corresponding movements :of

the rods 6 1. Therod66 is in pivotal engagement at 66 and 66 withthe outer ends of the arms 66 and 66 -securedto the pivot rods 66 and 66 The opposite endsof the rods 66 and 66 have secured theretocain levers 67 and 68 with which a trippingmem- 'ber 69 is adapted to contact. The said tripping member is supported upon the rod hereinbefore referred to. It will be noted that the cam acting arms 67 and'68extend in opposite directions and toward each other. Theupper end of the-rod 66 is connected to a lever arm 69 movement of which operates avalve (not shown) within the steam chest 69". Steam passes from the steam chest 69 to the lower end of the pistoncylinder 60 through a passa'geway69 In the position in which the parts are shown the tripping member 69 is in contact with the cam-acting arm 67 :of the 'loweraactuating device holding the parts'in normal "position with the valve in the steam chest "closed, and with the trippingmember. 51 in normal inactive position. When, however,

the weight of the slate and otherrstonymatter which piles up upon the members 51 and 52 becomes sufliciently great to depress the member 51 saidmember is depressed causing a corresponding depression of the rod 66 and causing also pivotal movement of the valve actuating lever arm 69 downwardly or to theleft 'to open the valve in the valve chest to permit the passageof steam into the lower end of the piston cylinder 60. The piston is raised or lifted-causingan upward movement of the piston rod'60 and the cross bar 61 carried thereby. Such upward movement carries the tripping member 69 into contactwith the depending "cam acting arm 68 which has been moved inwardly, that is toward the left, by the downward movement of the rod 66 as before described.

The contact of the tripping member 69 with the inwardly moved cam arm 68 effects outward movement of the latter and lifts the rod 66 upwardly to a position higher than that in which it isillustrated in Fig. 1 of the drawings so as to operate the steam controlling valve in the steam chest 69 to permit the passage of steam through the passage-way 69 into the upper end of the piston cylinder 60 so as to'cause a return or reverse movement of the piston in the cylinder. Such reverse movement continues until the tripping member 69 again contacts with the cam arm 67 to move it into the position in which it is shown in Fig. 1 of the drawings. In this position the steam controlling valve in the steam chest 69 is closed and remains closed until the member '51 is again depressed against the resistance of the springs by the weight of the slate and other stony material as hereinbefore described.

The coal which is lifted and discharged over the flange 35 travels over an inclined plate 70 to a trough or run-way 71 inclined as shown and extending transversely of the -58 of the front wall of the tank into a trough or run-way 75 which is inclined downwardly and transversely of the apparatus as shown in Fig. 2 in the direction opposite to that of the trough or run-way -71 and discharges into a slate discharge chute 7 6.

In operation the coal and slate or other materials of different specific gravities are separated in the compartment 5 by the pulsating and agitating effect of the water in the tank caused by the reciprocation ofthe plunger 15. The coal travels to the top'of the water in the compartment 5 and overflows the upper edges of the plates 17, 18 and 19 and falls on to the top of the lifting device 31. The said device 31 is lifted in the manner described until the perforated inclined top thereof occupies a position in substantial alinement with the forwardly and downwardly inclined plates 35 and 70 at which time the coal slides forwardly into the trough 71 and is discharged.

The slate is discharged in a similar manner. It moves'forward over the plate 8 and over the inclined upper edge 50 of the intermediate wall of the tank and falls on to the inclined top surfaces of the members 51 and 52. Reciprocation of the latter is effected by the operation of the piston in the cylinder in the manner hereinbefore described. hen the member 52 in its reciprocations is lifted so that the top thereof is in substantial alinement with the inclined upper edge 58 of the outer front wall of the tank the slate thereon slides into the trough or runway 75 and is discharged into the chute 7 6. By the method of lifting and discharging the coal as herein described, a great deal of breakage and crushing is prevented and thus an important item of waste and resultant expense are avoided. Furthermore, by reason of the automatically operating mechanism provided for the purpose of effecting automatically the discharge of the slate or other stony material a great saving in the expense of operation is brought about.

I claim:

1. In a jig for separating materials of different specific gravities, as coal and slate, the combination of a receptacle in which the said materials are separated, the said recepta'cle being provided with a passage-way for the discharge of the heavier material, a reciprocating device for discharging the lighter material, means for reciprocating said device, means in front of said device for supporting it, a plate upon the opposite side of said device which plate is supported upon-the walls of the said receptacle, a slidable plate intermediate the first-named plate and said device, the said slidable plate having pin and slot connections with the first-named plate and with the said device whereby when the latter is raised to a position above the first-named plate the intermediate plate is lifted to close the space between said first-named plate and said device and thereby prevent passage of coal over said first-named plate.

,2. In an apparatus for separating materials having different specific gravit-ies, the combination of separating means, means for continuously discharging one of said materials from the said separating means, means for lifting the other of said materials from said separating means, means normally out of operation for effecting lifting movement of said lifting member, and gravity acting means for placing the last mentioned means in operation. I d

3. In an apparatus for separatingmaterials having different specific gravities from each other, the combination of means for continuously discharging one of the said materials from the said separating means, means for lifting the other of said materials from said separating means, and means acting automatically to cause lifting movement of the said lifting means at intervals.

4:- In an apparatus of the character described, the combination of a receptacle provided with means for. causing the separation of coal from slate and stonym'atter, means Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

for continuously discharging the coalafrom the said receptacle, a member adapted to be moved at intervals for lifting the slate and stony matter and discharging the same from said receptacle and automatically acting means for causing movement of the said member at intervals for the purpose stated.

5. In a machine of the character described, the combination of means for lifting and discharging slate and other like relatively heavy material from a receptacle after it has been separated from lighter material, such as coal, said. means comprising a gravity actuated tripping member, a power cylinder, means for opening and closing a valve f for controlling the passage of a fluid under pressure into said cylinder, a connection between the said tripping device and the said valve opening and closing 7 means whereby movement of thesaid tripping clewhereby the latter may be actuated by movement of the connection between the said lifting means and the .movable member in the said power cylinder. r i

In testimony that I claim the foregoing and the said valve controlling means as my invention, I have hereunto signed my name this 13th day of November, A. D. 1913.

. SAMUEL V. TENCH. In the presence of M; L. WEST, R. H. HONSBERGER.

Washington, D. G. 

